Motor-vehicle



f y UNITED. .STATES A'laminar oFF-Ion. i

CHARLES BfSI-IORT, OE DETROIT, MICHIGAN, .ASSIGNOR T0 GENERAL MOTORS COMPANY, OFDETROIT, MICHIGAN, A. CORPORATION 0F NEW. JERSEY.

A Moro.n-viiHIcLE.-

To all wwm it mag/concern:

ABe it known that I, CHARLES R. SHORT, a ysubject `of the. King of 'Great Britain, and resident of Detroit, Wayne county, State of Michigan, have 'invented certain-new and useful Improvements in Motor-Vehicles, of which the following is a specification. j

i This invention relates to hydrocarbon motors` and particularly .to an improt'fedr arf krangement and disposition-'of vits ,Various parts, which results in a very simpleY and One of the objects of this `invention is tovprovide a novel and improved mounting of the circulating device of a motor cooling system, in proximity to the cylinder jackets.

Another object ofthis invention is to provide a single mounting for the cooling medium pump and the cooling fan, which is adapted to be detachably arranged on the motor -cylinder jacket.- j

Another object of this invention is to provide an improved assembly and mounting for the motor cooling' medium pump 'and the motor cooling fan. f

These, andother objects, will more clearly appear from the following description taken in connection with the drawings which form a part of this specicatihn, and in which Figurel is a fragmentary side elevation of the front part of a power plant, embody. ing a form of my invention, with certainl portions broken away for'the sake of clear-` ness. 2 is a fragmentaryV front elevationof a cylinder, showing a jacket inlet port along I the line2 ofF'ig. 1; and

a motor crank case on which may be suit" ably mounted al multi-cylinder4 block 11,]

Fig. 3 is a detail of a pump impeller. I Referring to the drawings, lOsrepresents f provided with the usual cooling medium jacket 12. lA crank shaft 13,' may be mounted in the bcrank case and. provided, adjacent its forward end, with a suitably secured drivingpulley 14. p y

A pump chamber 15 having an inlet port 16 and an outlet port 17, maybe detach-f ably mounted, as by bolts 18, on the front end of the cylinder jacket 12.

The usual radiator' 19, may be suitably mounted with a conduit 2O connecting its outlet port with the inlet portr 16 of the pump chamber, and withaeonneeton 21 Specification of Letters Patent.

"Application .led April 6, 19,17.. :Serial No. 160,133.

leading' from the jacket outlet port to the inlet Vport of the radiator.

The pump chamber is provided with a :sleeve or journal 22, and .bushing 23,in

`which-.the intermediate portion of a shaft 24 is mounted. A 'suitable' packing joint` 2 5 is arranged between the outer portion of the shaft 24 and the' journal portion 22 of the pump chamber.` And an impeller 26 is 'adapted to besuitably securedA to the inner portion'of this shaft, f comparatively inexpensive and compact as Afan I27 and a driven p'ulley 28 mayhave a pressed-linen the splined portion 29 of the outer endlthe shaft 24. And a suitable belt `3() mayfseonnect the driving pulley 14 with-.the driven pulley 28ffordriving both the cooling fan and the pump impeller 26. The jacket inlet opening 31 is provided with an inwardly extending integral fiange 32 curved. or arcuate in form and concentric with the axis of rotation of the shaft24 and which flange extends almosttentirely around the entire circumferencel of the opening, forming a bafl'le for preventing the impeller 26 -of the pump from throwing the cooling medium directly against the wall 33 lof the adjacent cylinder. Thus is prevented undue cooling of this portion vof the cylinder wall and causing a more uniform cooling of the motor cylinders.` l l It isalso to be noted that a boss 34 may fbe formedon thecylinder wall 33 for supporting the inner end 35 of the shaft 24.

While I have described and will specifically. claim whatl deem to be a preferred form of my invention, it will be obvious to those skilled in, the art, that various modi-- ications andchanges may be made without departing from'the spirit and scope hereof.

Having thus described my invention, what I claim and desireto secure by Letters Patent, is:'-

f1. In an internal combustion engine, the combination with a cylinder jacket having an opening therein, lof a pump casing se. cured to said jacket, a shaft rotatable in a vbearing in `said casing, a pump impeller mounted upon said shaft and adjacent said opening, and a battle arcuate in form and concentric with the axis of said shaft, and

arranged intermediate said impellerand the .adjacent cylinder wall.

. 2. In an internal, vcombustion engine, the combination with a cylinder jacket, a cooling medium circulating pump mounted 4' thereon adjacent one of the cylinder Walle andhaving als'haft and an impellerifolg said pump, of a baie plate arranged betveen4 d saidimpeller and Said cylinder Wall Vfor preventing the cooling mediumyfrom being thrown. fromI said impeller directly against 8. In an 'internal combustionengine, the

- combination with a Acylinderl 'and a "j cket i ,thereabouu of a pump chamber. detachabl'y' 'secured to -said jacket, and-a shaft havingan mpeller, one end 'of which shaft is supported from the cylinder and theother end .of which is supported on said chamber.

' 4. In an internal combustion engine, the

combination with a cylinder and a jacket thereabout, ya radiator and a pump and con' .nections fory circulating Ithe'cooling medium through s aid jacket, of a shaft supporting.

-said pump and suitably journaled lin said 'jacket and la support' from .said cylinder, `Vand a cooling fan mounted on said shaft.

5. In an internal combuetion engine, the combination with a cylinder and a jacket thereabout, a pump chamber mounted on y -said jacket, of a shaft in said chamber supported at the4 inner end .thereof from said cylinder, and a. pump lmpeller and a cooling fan on said shaft.

In .testimony WhereofI affix my signature. v

' OHARLES R. SHORT. 

